The Danish company Siwimaskiner brings the Siwi combihitch shortcut to the market. This enables both the chopper and the transport tractor to quickly and securely connect and disconnect silage wagons. This saves labor and a tractor and reduces input. It can be connected or disconnected within 20 seconds. The driver does not need the tractor / shredder. The quick coupling fits into the lifting device and comes with 8 hydraulic couplings.